scholarly journals Temporal variation of shear-wave splitting parameters before and after the 2008 Movri Mountain earthquake in northwest Peloponnese (Greece)

2013 ◽  
Vol 55 (5) ◽  
Author(s):  
Dimitrios Giannopoulos ◽  
Efthimios Sokos ◽  
Konstantinos I. ◽  
Athanasios Lois ◽  
G-Akis Tselentis
Keyword(s):  
Temporal Variation ◽  
Shear Wave ◽  
Shear Wave Splitting ◽  
Wave Splitting ◽  
Before And After

scholarly journals Shear wave splitting as a proxy for stress forecast of the case of the 2006 Manyas-Kus Golu (<i>M</i><sub>b</sub> = 5.3) earthquake

2012 ◽  
Vol 12 (4) ◽  
pp. 1073-1084
Author(s):  
G. Polat ◽  
N. M. Ozel ◽  
S. Crampin ◽  
S. Ergintav ◽  
O. Tan
Keyword(s):  
Shear Wave ◽  
Shear Wave Splitting ◽  
Marmara Region ◽  
Systematic Analysis ◽  
Seismic Shear ◽  
Delay Times ◽  
Wave Splitting ◽  
Before And After ◽  
Earthquake Research ◽  
Earthquake Research Institute

Abstract. The 2006 Mb = 5.3 Manyas-Kus Golu (Manyas) earthquake has been retrospectively "stress-forecasted" using variations in time-delays of seismic shear wave splitting to evaluate the time and magnitude at which stress-modified microcracking reaches fracture criticality within the stressed volume where strain is released. We processed micro earthquakes recorded by 29 TURDEP (Multi-Disciplinary Earthquake Research in High Risk Regions of Turkey) and 33 KOERI (Kandilli Observatory and Earthquake Research Institute) stations in the Marmara region by using the aspect-ratio cross-correlation and systematic analysis of crustal anisotropy methods. The aim of the analysis is to determine changes in delay-times, hence changes in stress, before and after the 2006 Manyas earthquake. We observed that clear decreases in delay times before the impending event, especially at the station GEMT are consistent with the anisotropic poro-elasticity (APE) model of fluid-rock deformation, but we could not observe similar changes at other stations surrounding the main event. The logarithms of the duration of the stress-accumulation are proportional (self-similar) to the magnitude of the impending event. Although time and magnitude of th 2005 Manyas earthquake could have been stress-forecasted, as has been recognized elsewhere, shear-wave splitting does not appear to provide direct information about the location of impending earthquakes.

Analysis of shear wave splitting anisotropy in the Tres Virgenes Volcanic Complex, Baja California Sur, Mexico

Geothermics ◽  
2021 ◽  
Vol 94 ◽  
pp. 102115
Author(s):  
F. Chacón-Hernández ◽  
F.R. Zúñiga ◽  
J.O. Campos-Enríquez ◽  
J. Lermo-Samaniego ◽  
N. Jiménez-Méndez
Keyword(s):  
Shear Wave ◽  
Baja California ◽  
Shear Wave Splitting ◽  
Volcanic Complex ◽  
Baja California Sur ◽  
Wave Splitting

Effects of oil‐water saturation on shear‐wave splitting in multicomponent seismic data

2007 ◽  
Author(s):  
Zhongping Qian ◽  
Xiang‐Yang Li ◽  
Mark Chapman ◽  
Yonggang Zhang ◽  
Yanguang Wang
Keyword(s):  
Shear Wave ◽  
Seismic Data ◽  
Water Saturation ◽  
Shear Wave Splitting ◽  
Multicomponent Seismic ◽  
Wave Splitting ◽  
Oil Water
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